3) Sorrius sends you to Gludin.
4) In Gludin go to the Blacksmith shop and talk to Blacksmith Kluto. He wants you to get 30 Emeralds from Ol Mahum Novices.

5)
Go to Abandoned Camp and walk to Ol Mahum Novices near the broken down
houses near the Shanty Fortress. They are aggro. Get 20 pieces then go
back to Kluto.
6) He sends you back to Sorius in warrior guild in Gludio.
7) Sorrius rewards you with 81,900 adena, Elven Knight Brooch, 228,064 exp and 14,925 sp.
8) when you are level 20 to change class talk to Grand Master Rains.
Congratulations!!!